You can schedule sales calls with local (to her) car dealerships by going to their websites. It takes a few minutes for each one. Works best if you have a vpn and slightly customize the description what type vehicle the call will be about to the dealership. You can even set up times for the calls.

Search for small churches online that schedule phone calls to discuss a 'personal relationship with god' or an interest in missionary work. They tend not to verify before calling.

In the same vein but more mean is to sign her up online for unexpected pregnancy counseling services with one of those organizations that is staunchly pro-life. They don't give up because they are on a mission and think they are saving a baby with each call.

Create a fake email account with a variation of her name. Sign her up with both the trump and sanders political organizations and provide her phone number. Neither one of these honor 'remove me from your contact lists'. Technically you could schedule volunteering or for her to host a fundraiser in her home with the trump campaign with little more than an email address. You set the day and time.

There are websites that all of the pay-by-the hour 'companionship' people moved to after they mostly got booted from Craigslist. Set up a dummy email Nd post an ad for services with her phone number. If you're really mean sone let you change emails after the fact and verify with your old email (suggest this be tested). If you could figure out a work email for the person it creates interesting possibilities. Vpn use is strongly encouraged.

Inspirational text messages can be set up online. About half of these services verify but half don't. A lot of them limit the hours they send them out but are open to any time zone in the world.

These are all theoretical and entirely unethical. A few are probably illegal.