Cover basin and net

Hello, I received a new truck bed cover today shipped from America and installed it on my Ford F150 Gamara, but it didn't fit. The reason is that my truck bed is 6.5 feet, while this cover is for a 5.5 feet bed. It fits all Ford F150 SuperCrew or SuperCab models, and also fits Dodge Ram 1500 with 5.5 feet bed. (It won't fit if the bed size is 6.5 feet.) Price is 1100 SAR. Note that the new one costs 1500 SAR, and this one has only been used once, just because the bed size is smaller.