Does Vasmartt exist no telephone number to get hold of them

I get harassed by Jaca Sinoxolo Jaca from Vasmartt Trust I then ask is this full and final settlement as I would like to pay it and would like a letter stating full and final settlement I get ignored via my emails I have proof I have send 6 emails in 1 week.

Even though there is statements that says I am behind, it does not make sense as this DSTV has not been working for about 3 years now