BAD SERVICE

i have a blue bean adn mastercard credit card that is with DMC and blake and assosiates. ive paid up both on the 18th and 20th December 2017. this morning i recieved another call from blake regarding an arrangement and this just ****ed me off. then i called back and was told oh the proof of payment is on your account but wasnt linked. SO SORRY ABOUT THIS. and thats it... then i call DMC as i want a paid up letter for the master card. only to be told the payment is still not reflecting as i need to send through the proof of payment first. i said the payment was made 6 working days ago how can you tell me now that i need to forward the proof of payment and youll only be able to see the payment on the 3rd of January. really now. you are so unhelpful when we need help when when it comes to pay time you are all over me. the call centre agent then tells be that there is not supervisor or and manager available to be able to assist me, he speaks all over me and has a hell of a attitude. this made me very furious. how the hell can you not have 1 person on shift thatll be able to assist.