Last week I activated my 2x Cumulus at Migros after a visit to the restaurant and then went shopping.
At the self scanning checkout I realized that it didn't work again. Already the third time!
I went to the information desk, where they told me to check the Internet, they couldn't do anything. When I looked at my statements, I saw that the 2x coupons were only credited 5 minutes later in the flower store at 14.90 Fr. ....!
From now on I'll probably have to take the paper coupons with me again.
These are probably still teething troubles, but at least we bought for 215 Fr. and can put the Cumulus points on our leg.