My question is, if I don’t have my Vivint panel deactivated with them yet, can I still swap out the cellular module and get my 2gig panel activated with SuretyDIY? Am I correct in assuming it’s the cell module and not the panel itself that registers with alarm.com?
Yes (but only if it is a GoControl panel). If you have a Skypanel, then only your 2GIG sensors/TAKE is reusable with Surety/ADC.
Vivint is notorious for auto-renewing contracts, and It is a difficult battle to actually cancel (and even then they will still try to bill/charge your card/account). You have to cancel in writing at least 30 days prior to auto contract renewal date. Your best bet is to also do an ACH revoke authorization with your financial institution, so if/when they do start taking money you can get it reversed. Also make sure you get it in writing that they confirm receipt of your cancellation letter (NOC letter), you may need this for when they send you to collections (or for when the collection agency sues you for the debt).
Usually they trick Users close to auto-renewal by calling around 6-12 months prior to that renewal date and get them to agree to a verbal contract renewal extension (verbal contracts are legally binding). Sometimes they get you to sign the contract renewal in the guise of signing for service work/new gear installation (folded over paper on clip board, and “sign here”).
Rule of thumb, never sign anything without reading it (especially with Vivint). Also, for those who cancel Vivint, for the next 6 months or so, watch your accounts every month for charges.