Read the following context and choose the best option to answer the question.
Context: The logistical and technological hiccups of the first twenty - four hours got sorted out . I wish I 'd been able to explore Mountain View and the surrounding area a bit more ( there are some good quilting shops around apparently , though none in San Francisco ) but as I wo n't drive ... Next time I travel I will tell the bank in advance so they do n't cancel all my cards again . I will also make sure my phone service provider has set up my account correctly .
Question: Why did their bank cancel their cards ?
Options: 
- They did n't make a payment .
 - They transferred to another bank .
 - None of the above choices .
 - They thought someone stole their card .


They thought someone stole their card .