Drip Drop Plumbing

On 8/6/I contacted DRIP DROP PLUMBING to provide me with an estimate for the replacement of a dripping shower kitI was told that the existing shower handle could be repaired for $but without guarantee of successThe second option was to install a new shower kit (which I already had purchased) for $I approved a new installation and made payment of $using my [redacted] credit cardWork was performed the following day and I was pleased with the installation of the fixture and I paid the balance of $ The following day I received the formal invoice which only stated the total amountI then requested a breakdown of labor and material since the work performed did not seem to be in any relation to the chargeI was told that their system did not allow them to itemize charges but they admitted that I was overcharged since the material I supplied was included in their initial chargeThe revised invoice was now $and a credit of $would be applied to my cr