What's the number that starts with 050?

pu1. The one that starts with 050 is the safe number. Maybe he used the safe number application because he didn't want to tell me the actual number

2017-10-21

OK

pu2. In the case of second-hand transactions, it's not good to trade with a safe number
In the case of used transactions, if there is a problem, you may need to contact me later
But in case of 050, you can change your number easily, so there's no way to contact you later
If you're going to buy something, you should buy it from someone else
If it's for sale, I think we can just trade

2017-10-21

OK