We have chartered every year since 93 with various charter companies and have had no problems with issues like that. We have had problems like breakage of equipment and other issues involving their equipment and never had to pay any repair
or other charges.
When we first chartered friends told us to make sure you read all documents sent to you prior to stepping onto the boat then read other documents they may give you during the briefing. After that check everything and anything on that boat that you can. If you find the slightest problem or have a concern about something bring it to the attention of the charter co. before you go out. Also write it down on the inspection sheet that you give to the charter co. before you go out.
We have had issues but because it was brought to their attention at the outset we were never charged.
All and I repaet all charter compaines have their problems and things don''t always go like we plan but remember if it were your boat and you were getting ready to set sail for a week or more would you go out with equipment that appears to be in poor condition?
Hope you can resolve your problem with them.