Who pays 50:50 for the report?

I already used the search function, but unfortunately I found nothing. My wife (holder) had an accident with your Nissan Almera. She drove someone on it. I (insurance provider) then went to the workshop next day and there was a DEKRA man there who got an expert report and sent it to the opposing insurance. My insurance company wrote me today that this is probably a 50:50 case. Who pays now the expert report from the Dekr a (always 400,-Euro)? I pay 50% and the opposing insurance 50%, or does the opposing insurance have to pay this opinion completely? Unfortunately, the opposing insurance still hasn’t registered (after 3 months). Have asked what is now more often, but it probably takes another week because they have only received the police files. All other questions (which I had) have already been discussed in the forum. If the opposing insurance also starts from 50:50 Who then pays the attorney’s fees (also 50:50) ? How much will they be like this? The repair costs amount to 1199,45EUR+VAT.If I have to pay myself the repair costs (50% of them without VAT), then I also get money for the days of failure (according to expert opinion 3 days)?In the report there is once a replacement value of 2068,97EUR+VAT. and once a replacement value with difference tax of 2344,21EUR+VAT. u mean? And last question: My wife was sick for 1 week (prellations chest, neck, hand…etc.)Do you get 50:50 pain money? What do we have to bear in mind?