Trying To Tip You Over The Edge

(I work at a popular spa, and we frequently get customers in to buy gift cards.)

Me: “Hi! Welcome to [Spa]. How may I help you?”

Customer: “Hi, yes, I want to buy a gift card for a prenatal massage. I have a $10 off coupon.”

Me: “Sure, no problem. So you now you just owe $64 instead of $74 since you gave me your coupon.”

Customer: “Okay, can I add tip onto there, too?”

Me: “Sure, no problem. How much could I put on here for you?”

Customer: “Better make it $20.”

(I ring her out, and charge her $64 for the gift card and another $20 for the pre-paid tip so now she owes a total of $84.)

Me: “Okay, great. Your total is $84. How would you like to pay for that?”

Customer: “Wait, why am I being charged $84? You just said the massage is only $64.”

Me: “Yes, but you added $20 on for tip, so that equals $84.”

Customer: “But the massage is $64.”

Me: “Yes. You added $20 for tip. All together that is $84.”

Customer: “But I gave you a coupon.”

Me: “Yes… which brought down the pre-natal massage total down to $64 instead of $74. You then added tip.”

Customer: “Okay, thanks.”

(She leaves. About ten minutes later, I see her walking back into my store:)

Customer: “Excuse me, I just bought this gift card for a pre-natal massage and I was charged $84 instead of $64, why?”

Me: “Yes… you added $20 tip.”

Customer: “But why was I charged $84?”

Me: “…You were charged $64 for the massage on the gift card, and then you added $20 onto the gift card as a pre-paid tip.”

Customer: “Okay, thanks.”

(She leaves again. About 20 minutes later, we get a call at the spa.)

Me: “Hello, this is [My Name] at [Spa]. How may I help you?”

Same Customer: “Hi, I just bought a gift card from you guys and I bought it for $64. I just looked at my receipt and it says I was charged $84. Why?”

Me: *sighs*