Edgars STOP harassing me PLEASE

Till this day they can't see proof of my payment I've used their whatsapp number to send it two times, but still they can't see it, I've emailed it three times to their collections department they cant see it. I have run out of options must I make another payment again REALLY? this is not on,they are now harassing me with their calls everyday a new person calls me to ask the same thing and they are soo Rude. The cause of this also is because of the consultant, I ask them can I pay at Legit and they said yes you can now they are saying they not the same thing