Took out a credit card with Sainsbury’s 2 years ago. Bought a car and was taking advantage of the 0% switch. They were very disorganised, told me I would receive a charge incorrectly and that I would have to call them to remove it (the first warning sign). I had some queries along the way, and half the time they didn’t answer my question probably. Got the distinct impression they wanted up to trip up and miss payments and incur charges. I moved house 9 months ago, and because I could remember my password, in their eyes I had failed their security test forever - they refused to update my address, so all my statements have been going to my old address. In the end I just went online and paid the balance off; I couldn’t take anymore. Even their payment phone line wasn’t working. Total nightmare. Choose a better credit card provider who know what they are doing - that’s my free advice. Good luck.