Dear Calla Regrettably a mistake was made on the drawings, and in hindsight I did not deal with the initial query properly. However, when you made your dissatisfaction known to me, I offered to meet with you, I went to site immediately and liaised with the contractor and engineer to make a proposal for remedial measures, which I diligently followed up thereafter and which you accepted in writing was satisfactorily dealt with and resolved. I offered my sincere apologies and a refund of the building control fee for the inconvenience caused. From this I took the matter to be closed. Please do not hesitate to get in touch directly for any further project related queries. Regards Marienne Pachonick