2 Estimates of insurance

Hi, I got one to the car, paint damage with Delle. Now I was in a workshop and had an estimate made and sent to the opposing insurance company, had then received a letter that the amount is accepted so, you would need now still photos and the original invoice. Now to the problem….I am back to the workshop and have presented this so, answer: We can not make pictures and also not send them, we also always have bad experience mi t Insurances were made. I was serviced there of course! Then I went to another workshop and with them all would fit so far but that their estimate is 200-300€ more expensive! My question is I can call at the insurance to which the situation signs and the more expensive estimate submit? Or do they now cross the border and I am the stupid one?