So received the case from Amazon today. Ordered it 2 days ago which is pretty incredible.
Title of listing was:
ESR Clear Case Compatible with iPhone 13 Pro Max Case, Crystal-Clear Shockproof Thin Silicone Case, Yellowing-Resistant Slim Transparent TPU Phone Case, Project Zero Series, Clear
Was very affordable $12.99 delivered. Seems to be of good quality and more importantly for me gave wife and I indiciation of the size as neither have had a phone this big before - surprisingly- I really like it! I bought it to tie me over but I might just use this for now.