B16a leaking oil help needed

My b16a is leaking oil, and i cant tell where it is coming from. Either the rear main seal, or the oil pan gasket. I had the rear main seal changed like a month ago when i had my clutch changed, but it still leaks oil, and then i fugured that it was the oil pan so i took it to a shop and figured that i would kill 2 birds with one stone and have some things done to my engine which would also include the oil pan gasket ( valve springs, port and polish the head, mill the head, 3 angle valve job, titanium pistons rings, bead blast the pistons, all new gaskets and seals from left to right) so they changed all that and changed the oil pan gasket, and it still leaks oil, and the guys from the shop say that it might be the rear main seal or the oil pan gasket, but they are not sure which one, that since the oil pan gasket is not oem thats why it is leaking, do you guys think that this is the problem? or am I just getting ripped off left and right?????? help needed please!!!!

oh another thing, its leaking alot of oil, from wednesday night that i got it back to friday i had to add 1/2 a quart of oil

Check the bolts on your oil pan, if you see oil on them, or oil is running down the side of the pan. More than likely your gasket is leaking, maybe they used the wrong gasket, or tightened it down to much or two little. Drain the oil, remove the oil pan, check the gasket. Go to autozone buy a gasket, get a good gasket seal, install the gasket with the seal tighten the bolts good, but not to good.

If you dont feel that you cant do it yourself, take it back get it fixed and make sure you make the shop pay for it.

hey thanks alot, it was my oil pan that was bent somehow, not leaking anymore :)