mortgage company advice

I made a very poor job decision at the end of May and tried to stick it out through June and July.  Realized that what the company promised in terms of production and editing pay was never going to happen for me and have since found a wonderful place where I can make enough to pay the bills. 

My problem is my mortgage didn't get paid in June and July and I was only able to pay half in August.  I'm paying them more than the minimum this month and every month from now on I have budged $300 over the minimum which will take me about 6 months total to get completely caught up.   I had not to date called the mortgage company to talk about terms or negotations, or what have you, because I knew when I started the new job I could get things caught up.

So today I get a letter saying that if I don't get the entire past due amount caught up in 45 days they are going to accelerate the mortgage and possibly start foreclosure proceedings.  At the bottom of the letter is says "hey, call us.  We want to help keep you in your home."  I am paying them $800 tomorrow as soon as my check hits, and I have planned on $1000 next month.   The actual mortgage amount is $700.00.

The kid at the mortgage company basically said that because I had a new job and it was 100% commission, they couldn't verify my income and there was nothing I could do and I had to give them the whole amount that was past due.  I kept explaining that if I had it or could get it, trust me, they'd have it.   After 30 minutes of beating my head against a wall and yet still trying to be nice because I don't want to **** him off and have him notate my file somehow, he is going to send out some sort of hardship assistance packet and IF they can verify my  income with my last two pay stubs and last year's taxes, then they might be able to help me. 

I want to pay them.  I'm not making any excuses.  Has anyone else been there and done that and does anyone have any advice?  I don't want to do anything like a bankruptcy.