Thanks to all whi have responded. Just to provide a bit more background, the work was a quote of £5,579.00 & VAT not an estimate. We paid 60% of the value with order in December for materials (I know deep breath) and the remaining 40% for the contract works on complete last weekend (work completed last Friday.) The final account was presented with 4 variation claims.
Changes to tile choice - £85.00 & VAT agreed & paid
Additional woodwork decorating to bedroom - £495.00 (a figure was quoted of £299.00 that was agreed, but is now claimed he forgot to add materials. We have paid £299.00 but refute the additional £196.00 on the basis a quote is a quote and surely not £196.00 materials for a 3.5m x 3.5m bedroom skirtings, architraves, window board & 4 doors, one side only.
Changes to sanitary ware of £290.00 which is ridiculous as we were careful to choose lower cost items than he had allowed from the same company. Also added delivery costs. We consider should be a saving if anything.
Then the £280.00 for the RCD work.
We have basically paid in full the agreed contract works and agreed variations. We had made an additional gesture offer of around £300.00 to bring to a conclusion, but when the threats, harassing language and insults continued as well as the 3rd of 4th threat of legal action in a week, we subsequently withdrew our additional offer and would like him to now take legal action.
I was confident on contesting all the claim other than then RCD claim. However, the responses I have received from all are very re-assuring and I believe makes our case even stronger. Thanks to all who have responded, what a great forum!