Question on Virtual Phone Number usage

[MasterChief]

Hi,
I want to open a few accounts, just to let them age for later on (30-60 days) and maybe buy 1 or 2 shippable trinkets on it for good measure in the mean time.

Now, concerning virtual phone numbers - they cost money, 4-20 dollars each.

So , I was thinking I would put in some ⊗⊗⊗⊗ random number for now.

1) When I start using the account, Ill just update the number with a newly bought virtual number. Is that ok, or does it make ebay suspicious?

2) Further, what if I dont update the number to a real virtual number when I start using the account, but only when/if I get limited in some way - is that okay?

[GreenBean]

I prefer to have a phone number at once. That way the account establishes
itself and you have minimal need to alter anything.

[aspkin]

It's okay in the beginning. But make sure to update it later or you could be limited. Usually if you're limited you're just asked to follow a procedure to verify your phone number. It's automated the last I checked.