POOR RESPONSE TO CREDIT LIMIT COMPLAINT

FNB without any warning reduced the limit on my credit card and transferred an amount on my budget WHICH I SAID I DID NOT WANT! I phoned them and advised them that i want my limit back to where it was and nothing on budget. Yet 5 days later i have not received a reponse. I phoned again today and they advised me that I must wait for them they will give me feedback. This is unacceptable. If this is not corrected I will take all my business somewhere else