two attorneys sent for one account

<p>I have an account with FNB which was a revolving loan account,i had financial crisis couldnt pay them well, then they handed over my account to Hammonpole and Blake & associates,i made arrangement with Blake and associates to pay 800 per month,after some months, have receive a call from Hammonpole they also came with their amount saying that im owing and even insist that i should pay them, after a month i receive sommons from Hammonpole, again i contacted them this time i phoned them when i was at FNB, the person asked me to send a proove that im paying Blake & associates and gave me her Email address,i did her wish, send a proove of payment .Still now im receiving calls from Hammonpole attoneys,they have asked me to send another proove,of whch i have just send it again right now,i just dont know until when and what im i suppose to do with this sommons.and FNB are failing to rectify this as is their fault for sending 1 account to different attorneys.</p>