Hello, Cecilia, good day. If you check the whole conversation, and the documentation done from the local store, I communicated that the issue occurs everywhere. I used my work and home as the 2 most frequent locations I was, to showcase that even in these very central areas of Amsterdam I had very poor internet connection.
So, on my end, I provided detailed explanations, in person show my phone, sent internet speed tests to Vodafone agents, and none suggested a simswap test. I followed all the suggestions in order to solve my issue, however, given the apparent fault in advising the correct steps by your agents, it seems only fair for the company to consider reimbursement for the duration during which the problem persisted, not a month of subscription.