You may be able to cancel the subscriptions via the Account Owner's My Verizon on-line account, or call Customer Service and have them remove them.
Dial *611 from a cell phone
Monday - Sunday 6 am - 11 pm
Let's put a stop to this unwanted subscription. Does your mom receive messages (text) each month about this service? If so, have her text stop to put an end to the messages. Is the charge showing up on the monthly bill? As suggested by tikibar1 you can also try signing into her My Verizon account and check under here features to make sure not subscriptions are listed there.
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