I am currently 1 week in, trying to resolve a complaint with Vodafone and I can honestly say it has been the worst experience I have ever had dealing with any organisation. On Monday I started to receive strange calls from people telling me my mobile number was calling them multiple times, which I of course reported to Vodafone. After speaking to a rude and slightly patronising member of staff about my issue, I was told that a Manager would call me back within 24 hours. While this was far from ideal given the fact that my phone number was clearly being used by a third party and I was receiving multiple call backs an hour, I agreed, mistakenly believing they would prioritise an issue like this. I also went to the local store, who could not assist but did give me a new SIM number just in case (it did not make a difference). After spending my day apologising to strangers who were receiving 6 calls an hour from my number, I decided to be pro-active and went on live chat. Mitesh tried his best to assist but could only suggest I removed call divert (which was not the cause) and then escalated to the fraud team, which would take 72 hours. Calls started in the morning again, with people now phoning back about double glazing sales calls they were receiving, again from my number. One lady had innocently sent me all her personal details by text message, which was concerning, as at this stage we had no idea if my number had been hacked. I called the lady back to warn her of the situation but this was now taking a lot of time up screening calls and apologising to strangers for the inconvenience. As my promised call from the manager never materialised (this has been a theme), I called the customer services line again to discover my initial call had never been escalated to the Manager as promised. Thankfully I had been proactive in the interim, otherwise I would have wasted 24 hours! After a long conversation with the advisor, where I had to explain myself several times and pretty much threaten to leave, it was suggested they block my line and I take a temporary number till the issue was resolved with the fraud team, which would take up to 72 hours from the second time I logged the call. While far from ideal, I could see no alternative in the interim and so let immediate family know my new number while waiting for a call to say the issue to be resolved. The following day I received a text to say no fraud had been identified and to call the CS Team to discuss anything further. My heart sank. After 1 hour and 20 minutes, in which I spoke to every department and explained my issues multiple times, I was told that the number change team would call me and would be able to explain if the issue had been caused by my number being accidently recycled.(The number change team are yet to call me). Shortly after this call I received a text message, with terrible spelling errors, to suggest I block future nuisance calls with an app (this would mean inputting 14 numbers a day) or to change my number, which Vodafone would do. No explanation of what had happened, why or an attempt to resolve? They also sent a customer satisfaction survey, which I responded to extremely honestly. That evening I called again and was told that even if I wanted my number back I could not have it, as they had already re-allocated it. How could this be if they had an unresolved fault on the line and also without my permission. I was very cross and asked for a Manager to call me back (none are available in the evenings apparently). I was assured this would happen in the morning. By this stage I fully believed Vodafone had no interest in helping and wanted to another company to pay my £45- £75 a month bill to. As expected, no manager called me back but I did receive another mis-spelled text in which I was told my complaint was resolved, as I had agreed to change my number and the calls had stopped. As I had only ever agreed to change my number temporarily while Vodafone investigated and the only reason the calls stopped were because they blocked the line, I did not consider this resolved. Why should I be forced to take a new number with all the hassle that entailed, without anybody explaining to me what had happened (which I now strongly believe is Vodafone's error). Since then I have spent nearly every day in some sort of communication with Vodafone. The conversations are always long, involve promises to call back which never materialise, don't explain the situation and focus on accusing me of lying when I say I never agreed to a permanent number change. It has also been suggested that perhaps my friends were playing a prank on me? The most recent call was a voice message to confirm that I can't have my old number back due to it being re-allocated (again, how when there is a known issue? and also if somebody else owns it, why does it not ring when called?) Vodafone have never once offered an explanation, never admitted they don't know what the problem is or as I suspect, are refusing to tell me. They have forced me into a permanent number change and have cost me countless hours in calls/Emails in a futile attempt to get somebody to listen. I am preparing to call again tomorrow, but it is a real test of endurance and if you want good service from a provider, who has an interest in resolving your issues or at least valuing you as a customer, definitely avoid Vodafone.