Poor communication and service delivery

I have been using this account for years as good paying customer then was under debt review now debt free for a year now. I have been trying to reapply for his account it was rejected the whole of last year. However when I check on credit score the same account active, went to the store to purchase and was told it doesn't have a credit whereas on the app there is a credit. I followed up and email them credit limit increase form, 3 Months bank statement and the same screenshot. Was told indeed the account is active however was informed to resend bank statement and credit limit increase form again. I did and later received a message saying that credit limit is put on hold because it's unclear. I don't know why does that means, I email them again and guess what they send me credit limit increase form again. This is unprofessional and disgusting to repeat this one thing over and over again. Can they atleast work to resolve issue rather than just responding.

So disgusted