Time I had to keep a promise

 I think I promise sort of like a secret where you can't tell anyone what of is.Like such as the examples down below.

The time I had to keep promise was on the brothers birthday. My mum was going to buy him a new phone and a Bluetooth speaker.  

The other time I had to keep promise was on my sister's birthday because my Mum was buying her a tablet.

And also the other time I had to keep a promise was on my mum's birthday because me and my brother and my sister we all head saved up our own money and brought her make-up kit.