Select Portfolio Services not crediting payments and harrasment Salt Lake City Utah

three and a half years ago I was told by Social Security that I had earned too much money and they would not pay me to the tune of $10,000. I had a mortgage with Chase and this made me late in paying them. Chase threatened to forclose even though I tried repeatedly to modify the mortgage. So I went into Chaper 13 Brancruptcy protection until I could get back on my feet. I am a single senior  so $10,000 is a lot of money for me.  Then without my knowledge Chase sold  my mortgage to Select Portfolio Servise .  

I have been paying the mortgage to SPS plus to the Chaper 13 Trustee on a monthly basis. A couple of weeks ago I got a call from my lawyer saying that SPS wanted the court to remove my protection for non payment of the mortgage.  The form that I was sent says that I had not made a payment since  August 2015 which is not true. I went through 3.5 years of bank statements to prove that I had made the payments. My latest payment to SPS was March 2016 and I am about to send another. SPS wants $10,500 to cure the missed payment or they will go to the court to get my  protection removed.

I have the statements saying that I did pay but of course the checks are all "electronic" and I have no physical checks. The latest statement I received from SPS is very confusing. I have read so many bad reviews of this company I am very nervous to send them any more money fearing that it will not be credited to my mortgage. I need a new lawyer because I think that my current one is in cahoots with SPS. Any help I can get I would greatly appreciate.