I called back number (07) 3547 7126 reached voice mail for a charity company but did not say the name.

Rang about 4 times I just got to it and the mobile stopped but the landline started. Was a woman about Assistance Dogs but she said it wasn't her!!!!

Has called every day for the last 4 days, each call getting earlier in the day.
Blocked number after the 3rd call, but they just tried to ring again.

Call never lasts long enough to reach messagebank. Usually stops after 4/5 rings.