Bambu refill spools- filament getting stuck

I was loading two PLA filaments I bought online from SUNLU and there was a loading problem: after pushing the filament all the way through, one step of the loading process always goes wrong.

The problem is when I try take the filaments out the printer won’t let me unload and I can’t pull them out manually.

I just bought my printer less than five days ago and I’m new to 3d printing. When I search online for answers either I don’t know what they’re talking about or isn’t the right information because my printer is new.

I REALLY need help.