Wells Fargo told me to have my payment stopped at the bank, does that make sense?

I tried a payment plan with wells fargo. I sent in extra money, but then they told me to stop payment on that check while the payment plan was being reviewed which I did. Because that check was stopped, they then said I broke the payment plan and would not allow me to set up another. I called in several different times and they said they approved me for a loan modification and I was to send them $2900.00 to start it then they would send me the new paperwork for the modification. That was on December 10, 2007. I contacted them because I did not receive paperwork and they told me the modification is still being reviewed, but I thought it was already approved!? Now I'm really confused. In the meantime, they have started the foreclosure process. I received a letter from their attorneys saying that the sheriff sale date is 4/10/08. I called Wells Fargo and they are saying there is not a date set because it's under review yet. I called the attorney back and they said there IS a date set. I have no idea what to do. I think with attorney fees I will end up owing around 8K. I have 6K now to send in and bring this current, but they will not let me. Please help.