Pathetic service from 2 different branches

Worst service ever. My account card was ****** and trying to get a new card is becoming such a mission and taking forever. On my first attempt, I went to the KC branch and told them that I need a replacement card. The number that you have on the system currently differs to the cellphone number that I am using. The lady who assisted me was a supervisor, I cannot remember her name but her name tag said supervisor. Firstly, she didn't have the link and needed to phone people which took a few minutes. Then eventually she called customer service and they told her that the store must send a copy of my ID and the new number via email....only to be told by the supervisor that I must come back as the person who does that is not in. So I wasted about 30 minutes waiting for nothing. I then thought I could change my number by calling myself and I was told that it must be done via the store. Today, which is about 2 weeks later, I went to your Ottery branch and again assisted by a supervisor Zintle and she also had to call someone to ask the process. I find it strange that both supervisors at different stores don't have the necessary info for their customers. So this supervisor told me that I must call the accounts department myself to update my cell number and I told her that they said it must be done in store and she said there's nothing she can do. Again, wasted a few minutes of my time and my petrol. Your staff service and lack of knowledge is pathetic! I'm still without a card and honestly with all this back and forth, I don't see the point of getting a new card.