Verb conjugation of "nachfragen" in German

Of course I have already tried, but it did not work. I will try it again. Meanwhile, here is the reason for my short emails... only one hand free at a time, see explanation in the image of me.
Could you please read the following offers in a critical manner and confirm it before I will send it? I have also mentioned the warranty and the software in the offer, because it was requested by the customer.
What problems did you have when you had to share your flat with your mates? Probably you were not used to it. We say that when we live close we usually discover many issues that were not known.