Legally speaking the data was recorded without consent so if the company receiving this data tries to claim ownership, they'll need to delete it anyway. Howeve

Legally speaking the data was recorded without consent so if the company receiving this data tries to claim ownership, they'll need to delete it anyway. However, because the author lives in a country covered by the GDPR, they have a right to receive, correct, and adjust the personal information collected on them. No need to capture the data transmitted by the system, the company is legally obligated to hand over every bit of personal information they have on the author, including any pseudomised information, in a format that's machine readable. In theory you'd be liable for racking up a bill if you use their SIM card, but I doubt it still works.