Citibank Credit Card Complaint

Citibank Credit card department,

Payoff process New York

My Home Depot card had - promotional balances : -/-/16 $1400.00 -/-/16 $2000.00 -/-/16 $310.00 I paid $100.00 on -, $90.00 of which was for the minimum payment. On -/-/16 I paid another $100.00 toward the -/-/16 promotional balance. On -/-/16 I paid $2000.00 to satisfy the balance owed of $1300.00 and the balance of $700.00 to be applied to the -/-/16 promotional balance. Home Depot now shows that I owe $2600.00 on the -/-/16 promotional balance. I am prepared to pay the correct balance of $1300.00 on -/-/16 but ca n't since they ca n't seem to fix it. I have contacted them via e-mail, online chat and phone at least 10 times already. Now they tell me it is going to take 1-2 billing cycles to fix it. It only took them a day or two to make a mess out of it. Please help!