Disc wrote alot of misinformation here,

an alignment usually pays 1.0 hour of labor time, so $20 is not gonna happen, atleast here in the us

our shop labor rate is 149.99 an hour for a GM dealership.

if your wheels arent out of wack its not going to destroy your tires. but it is better to have it done and looked at, most shops do free alignment checks

002 wrote Yes, this is an alignment issue. As Disc said it wouldn't be $20 in my area, I pay about $120 but I paid $260 to get a lifetime alignment (I can go in whenever I want free of charge).

Even though your car went into service they would not check the alignment most likely. That's a whole different area of the shop and a lot of shops aren't even capable of doing an alignment. Beings that you said you've hit a few potholes that've resulted in flat tires tells me you probably put a lot of stress on certain components such as ball joints and tie rods. Those may need to be replaced to get an accurate alignment (though that's not all ball joints and tie rods do).