I have had a line of credit with specialized loan servicing for many years and have never had any issues and have always paid on time. I was offered a modification with them several years ago after the XXXX shock and agreed to it. The mod is fixed 4 % interest only for the remainder of life of the line of credit. Two months ago I noticed that the payment increased and discovered their system of record reflects 4.25 % instead of the 4 %. Several calls in the last six weeks while waiting on a research ticket to be resolved to remedy this situation has gone ignored. Their executive office halted the continued montly ACH from my savings account and now I am having to call in payments due to non-corrective action on their part. According to the executive office, they do not know why their computer is not correcting the rate back to 4 %. We are making ( estimated ) payments now based on previous years payments based on the respective month. The fact that a mortgage servicing company can not explain, nor correct something as critical as the interest rate is egregious. Please help me! 
