Hi,

Today I downloaded bitcoin core so I could receive money from someone.
About 45 minutes ago I provided the user who was sending the bitcoin with my receiving address.
He says it says pending and waiting for confirmation but on my bitcoin app theres nothing pending and balance is 0.
Sidenote: It says "Reindexing blocks on disk" 3 years 37 weeks.

Edit: he says its still pending but it was just confirmed.


My questions:

1) Is the reindexing blocks the reason I haven't received the payment yet?
2) Could it be because he uses a different bitcoin app?
3) Is there any way to cancel a bitcoin transaction?

These are probably noob questions but it would mean a lot if you could help.
Thanks in advance.