Complaint Review: Lon Smith Roofing

Lon Smith Roofing Sales Rep Travor Terrell measured my home for a new roof and presented a contract for $3676.00.  After we reviewed the contract and both agreeing on the price we both signed the contract on 07/14/09.  After work started I was contacted by Travor stating that there was a measurement problem and an inspected from Lon Smith (Rolando Silva) would be out to re-measure.  Rolando arrived re-measured and informed me that the measurements were wrong and it would be double the price from $3676 to $6000 or $7000.  This is after the roofer had already tore off the original roof that I was informed of the change.   I contacted the sales rep Travor and he said he would check into it. I did not receive any phone except the accounts payable rep ( Kelly) wanting all my insurance claims information.  The roof was completed in 1 day and no one contacted me, I did notify my insurance company of the contract dispute.  On 08/26/09  i received a fax copy of the final invoice for $4180.00 I contacted  acct.payable ( Kelly) and discuss the invoice and agreed on the $4180 amount.  I draw a cashiers check for the agreed amount and enclosed a copy of the invoice marked paid in full.  I call Kelly and informed her that the check was being mailed on 09/08/09 and she would contact me when it was received.  I never got call and I called twice and left messages and she never called. I contacted the bank and was informed that the check was cashed on 09/10/09. On morning of 09/10 - at 07:43am  i received a fax copy of yet another invoice for $6950.13 from business office rep (JoAnn Headland). I faxed this information for my insurance company.  After arriving home in the evening i received a letter with the same information and an letter asking me to sign and return an ok to request an additional $2770.13.  I have tried to contact there offices and conveniently there phones have been out for 2 days.  So my complain that Lon Smith Roofing is trying to defraud me and my insurance company.  I agreed on the lowers bid $3676 they raised it to $4180 and then to $6950.13  seems for fraud to me.