Poor result after being told repair was possible

I sent a picture of the fiber that needed repairing, and the person handling the WhatsApp number confirmed they could assist with the repair. However, it became clear that this type of fiber isn't something you usually work on. The splice was not done, and I was told, “That’s the best we can do.” Please don’t confirm you can assist if you're not fami**** with the specific type of fiber, as it leads to wasted time and unsatisfactory results, and my costs.