supplier help/ RT Specialties

I decided to replace the front door glass felts, you know the one on the front of the glass tats slides up and down in the vent window rail, and the one on the rear of the glass. Well I ordered the parts from RT Specialties in PA the first part of April. Took me 3 weeks and numerous calls after ordering to finally get them. I then discovered I needed the lower window channel U moldings. The rear window guide that sets down in the door.
It took me 4 weeks and numerous calls with them telling me they were shipped to finally recieve them only to get the wrong moldings. Called again was told sorry we'll ship the right ones. Waited a week got nothing, called again and was told they have been shipped. Another week has gone buy and nothing.
Im by now on a first name basis with the person who answers the phone, and all I get is promises and no action. I'm about to call and go balistic, but I dont know who else would have the part and I know they do.
Anyone else delt with RT Specialties?
Do you know of any other suppliers?
Ive had my doors torn apart for 10 weeks and am frustrated as HELL!
Its June and my car hasnt been out of the garage yet this year!