Samsung losing my phone

I handed my phone in at the Samsung Store (Tyger Valley) for a standard screen replacement on 16 February 2018.

To date, my phone has not been returned and the feedback from Samsung is that they can't find it. I've now been tasked to provide proof that I've handed it in. I have done this and still await feedback. They can also see from the store's records that I have not signed for the return of the phone.

I have always been a huge Samsung supporter with my last 4 phones and all home appliances being Samsung branded. Unfortunately this is the first time I have had to experience their after sales experience and it seems this where they lack in quality.