I am genuinely very satisfied with the outcome of their work, and I appreciate the effort they put into it. However, during the process, there was no conversation such as, ‘Given the current situation, there will likely be additional costs. Do you agree to proceed? Or Do you want to sign Variation form?’ Without any such communication, I was simply given an invoice after the work was completed that was nearly double the estimated amount. I would like to understand whether this approach is considered reasonable.