In the shop and my booster card with a limit of £1500 and gets declined! This is my personal money and you have declined my card causing great embarrassment and no support. I have £1100 of my money available and you have the audacity to do this!!!
Send a message in the app and they will get back to you why this was declined - it is possible that the decline was for security.
Do not confuse you deposit with your credit line. You have a normal credit card with security features regardless of you being a booster user.
If you have £1100 on deposit then a £1500 transaction will be declined. On booster deposit=credit limit.
I hope you’ve managed to get this clarified by support by now.