Charge for mounting tire to rim

Well, I just received a call from GSER(caller ID says Allstate Ins. Co.)I guess all road service is the same company! I was charged $182.82 for parts and labor. Was told "parts" was NOT itemized but was $13.00. How do I know I got "parts?" I have requested a receipt and should be getting one.(I hope)So that means the labor was $169 +/-. That to me seems a little steep. The gentleman that called agreed and said he would refer this on to his supervisors that maybe itemized receipts should be submitted. Never known of any company paying a bill without an itemized statement. I know we didn't when I was office manager. I do not like a charge put on my credit card with out knowing EXACTLY what it is for. Does anyone else feel that way?Out of "courtesy" GSER is crediting my account $100 which I greatly appreciate. When I inquired if that meant the provider would not get the billed amount I was told "we" will absorbe the refund. ?? He said he would call me back when he found out more. The provider was here less than one hour and my husband says he did place a valve stem. Still need receipt. BTW.....charges were billed to Signature Motor Club, North Brook, IL. I guess it doesn't matter which road service you have. It's all the same!