Don't worry about being a pest

I bought all kinds of GC from Kroger recently when they had the 4X Fuel Promo. (thanks to the DIS for alerting me to that promo and some good tips

)
Our store was out of the large denomination GC so I had to buy $50 but mainly $25 and some $15 GC.
Whenever I called, I usually averaged 5-8 GC per call.
When they asked if I was making a payment with my Disney Visa Rewards card, I would say no, I'm using quite a few GC is that a problem.
I was told absolutely not - I even asked if there was a limit as to how many cards they could enter.
One CM said I don't think so - just keep giving me numbers and I'll keep entering them in.
My last call I used 11 cards. When the CM asked if there was anything else she could do for me, I said I think you did enough for me entering in all my cards - she said no problem at all, it was my pleasure. We look forward to seeing you soon.
On a previous trip, I used around 5 different types of GC to check in and the CM at the front desk didn't mind at all. In fact, she said that transaction gave her good training.
I guess you might get a CM who would act frustrated, but I think overall they don't mind.