Over the years the industry has definitely changed, each year (and I have done that a while) I see people wanting to make what they think is some quick cash thinking the animals alone will get them there, they have no business sense nor do they have any clue when it comes to customer service.
Sad but true, but customers have changed too.
Hopefully you can get the breeder to make it right.
If the issue is due to long term nose rubbing even if cosmetic it should still have been disclosed.
If it is an abscess it could become costly and did not happen overnight.
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