Never a problem until last month
We have also had our Mutual account for ages and have never ever had a problem until last month at the Embassy Suites Oxnard. They Insisted on calling my wife at 2:00AM her time and I refused to let them. They said they could put the stay under my account then. I explained that they didn't understand - we have the same account number. We went in this circle for 30 minutes before they relented.
On a side note, after I got to my room the aircon wasn't working in the room. I called and was told the aircon was out in all of the rooms. Really, they couldn't have told me this on checkin.