tell them, they put the sticker there, they have to give the service to you free of charge.
if they said you give to buy the SSD and pay a install fee, ask them to show you where does it state in the warranty booklet.
if they say there is a install fee even if you use your own SSD, tell them, i come here to get a new sticker so i can install the SSD myself.
otherwise, may be can take them to custom. anti-competition law?