I ordered a bottle at the beginning of July and didn’t receive it weeks later so contacted HydrateM8 through the email address on their website twice but never got a reply. I eventually contacted them on Facebook to which they did reply and raised the issue with Royal Mail. It took another few days for anyone to get back to me but after a while was sent a new bottle which arrived quickly. Although it was a lengthy process, when I did get through to customer services my order was dealt with quickly, however would recommend messaging them on social media rather than emailing as I sent 2 emails which they supposedly never received even though I got a confirmation email that my email had been received.