Product: Credit card or prepaid card

On Saturday, XX/XX/XXXX, I applied for a credit limit increase on my Capital One Quicksilver MasterCard. I have had the account for approximately 5 years, and in that time period I have always paid my bill before the due date without missing a payment. My credit limit was initially set to {$1100.00}, which I consider extremely low due to my credit score at the time and my current financial obligations that consisted of a mortgage of approximately {$830.00}, including homeowners insurance. Over the last 5 years, I have applied for a credit limit increase and on two separate occasions have been approved for a {$300.00} increase, and a {$200.00} credit increase. Since then, I have repeatedly been denied, although I have applied for credit cards that have immediately approved me for credit limits anywhere from {$5000.00} to {$21000.00}. My current situation is that my credit card balances are XXXX ( zero ), and in most cases I have a negative balance. Such is the case with my Capital One Quicksilver MasterCard - my balance is XXXX, with a credit limit of {$1600.00}. My credit score, as indicated on the Capital One Quicksilver app through XXXX XXXX XXXX credit score is XXXX, with 100 % of payments made and a zero owing credit card balance. In addition, I have a membership with XXXX XXXX XXXX that gives me access to all 3 credit agency platforms, and a membership with XXXX XXXX XXXX as well. The XXXX membership currently shows my XXXX XXXX as XXXX - XXXX ; XXXX - XXXX ; and XXXX - XXXX. Additionally, the XXXX membership shows my credit score as XXXX, and all three credit reporting agencies show I have a balance of {$47.00}. I realize that these reports are sometimes not up to date, but they are very extremely close and accurate. Nevertheless, Capital One MasterCard has again denied me a credit limit increase on a {$1600.00} available credit card with a minus XXXX balance. The agency used for their findings was XXXX - XXXX that they used XXXX when their credit report findings on their App through XXXX is based upon Transunions Vantage Score XXXX that shows I have a credit score of XXXX, with XXXX balance owing, 100 % payments made on time and XXXX percent credit used and 100 % credit available. Also, my XXXX report shows that my credit score is XXXX with 100 % of payments made on time, XXXX balance owing on all credit accounts and 100 % of my credit limits available for use. I called and they never give me any satisfactory answers, plus their customer service is outsourced to somewhere in XXXX or XXXX XXXX. They don't have any answers for why I've been denied, and don't offer any solutions as well. Attached, if possible, I will provide you with a copy of the letter sent to me via their application, as well as documentation of my credit scores and financial obligations. Consequently, they said I was denied because of information obtained by XXXX that my financial obligations as reported to them by the credit agency was too high and that a credit limit increase on my account is not currently available upon request. Both of which are not only true, but totally ridiculous and reaks of profiling bordering on racism and discrimination. I more than deserve a credit limit increase and proved myself more than worthy of one based upon credit reporting facts.