Bad service provider

It has come to my attention that iv been a loyal customer with game several years, most of my goods I bought via online... What is disappointing me its on the 5 of November 2019, the order it was placed of two items their delivery promise its 3 to 5 days, on those 2 items only 1 received, the other 1 its still have tried several times calling them, sending them emails but nobody is responding... Tell me game what must I do because I can't go to the shop and purchase it because the delivery it was paid.... I need resolution on this matter.