I recieved a coupon for an oil change special at monroe muffler and we went to the monroe muffler in Altoona, Pa. and we were told that they would not change our oil for at least 3 to 4 days. I called an hour later and asked for an oil change and was told to bring it right in. when I explained I had a coupon for 10.00 off they told me they couldnt get to it for a week. They next morning I asked my sister to call and ask for an oil change appointment, she was told she did;nt need an appointment, she was asked if she had a coupon and she stated... read full review »