My experience the week of 6/20/15 was different. We had 2 rooms and on 3 different occasions our MBs were declined for charges due to "over credit limit". The first time it happened in Mouse Gears and the CM there told me that the resort authorizes $200 per day and that something must be wrong with my credit card, so we leave Epcot go back to CBR and check, as it turned out they had no name associated with my CC and that was causing the charges to not go through (??), this was on Monday, we checked in on Saturday. so the CM at CBR fixed that issue. On Tuesday, in MK my BIL went to use his MB (in a different room and a different CC) and it was declined for the same reason, so this time he called CBR and they "fixed" it over the phone for him. On Thursday, it happened again at AK to me, this time when I went to CBR the CM told me that there was a block on my CC and to call my CC company. She gave me aprint out of my room charges so I check my CC account online and see that Disney put through the charges that day to my CC, so it wasn't blocked. Oh and that time the CM @ CBR told me that the address they had associated with my CC was the address of CBR so that was causing the issues.
The CM @ CBR also told me that even though you have $1000 limit for charging, the resort will run you charges when they get to $500. I was also planning to use GCs to pay off the room charge so it became increasingly difficult to do so since I had 6 people that I was paying for and we got to the $500 daily, so it meant alot of wasted time running to the front deak or concierge with gift cards.