Poor systems In PLACE AS A SAMSUNG SERVICE CENTRE

I took my phone in on the 19th of June 2020 in for a screen repairs I have a Samsung A70 I asked I the last at reception to please ensure that my phone is not factory resetted. Inspite of me calling numerous if times asking that my phone is not wipe they still reset my phone I'm furious and angry I want answers on how my phone can be recovered as nothing was backed up I am a first time mom and I had 4 years of memories on my phone . Now when my child wants to see his pictures and videos of himself when he was younger I have nothing to show him..... my husband and I are angry there is poor service in place.... I even signed a document saying only if my password was incorrect someone will call me and if no one could get a hold then they would get a manager to call...... but no one called me the repair was delayed my husband was even at the store while the repair was being done they could have even verified the password with him.... I provided the correct password but yet they made their own decisions. I want answers immediately.