Frustrated and ****ed the fx#@ off

Last year 2019 I booked my fiances phone in for screen repairs it was dispatched to Sandton mall it took 3 weeks, when the phone came back it was in the condition he left it. Fast forward few months later on the 14 July 2020 my phone was also booked in for screen repairs which was dispatched to eastgate repairs, I waited almost 6 weeks for my phone firstly, secondly when I finally got my phone back on the 28 August 2020 my phone came back completely clean. Now my problem is who the hell gave them permission to factory set my phone, now from my understanding the software as absolutely **** all to do with the screen. You guys literally took my whole life from me, 6 years of memories are gone from my phone my entire wedding plans are gone do you guys have any idea how many months and years you guys took from me and not once was I asked for permission or even advised that my phone was going to be factory reseted,if that was the case I would've moved everything from my phone to my spare phone but because of experience with my fiance knowing that there was no need to reset the phone, I would really like to know who gave those delinquents the right or permission to invade my privacy like that, cause neither I nor my fiance were asked or informed about it. I am frustrated and furious with the pathetic service this company gives. Now if I don't receive any response from you guys as to how the **** I will get all my data and pictures back, I will involve my lawyer.