Unresolved Dental Filling

I saw Dr. Patrick Sum and had composite added to close my gap between my central upper incisors and the composite used was at least 3 shades more yellow then my natural tooth color. Dr. Patrick Sum did not advise me that he was going to use this color of bonding material and I went back to get it fixed. Afterwards, I came back out looking at least 2 shades more yellow then my natural tooth color. Dr. Patrick Sum advised that the composite used is the whitest level available which was supposedly A1, however It's funny because other dentists use composite that is not this yellow and if Dr. Patrick Sum had in fact used A1 composite then it would match my other fillings done by previous Dentists on my central upper/lower incisors. When speaking to Dr. Patrick Sum he advised that he used A1 composite, however, it does not make sense as I have other fillings and the composite used by other dentists have always been white and not yellow. Due to Dr. Patrick Sum's unwillingness and inability to resolve this matter I advisded that I would not be coming back. I do not recommend this dentist where dental composite might be used.