B card is totally unnecessary, as long as it is used in Tong Can. Suzhou Tongka has been used for so many years, but for a 60% discount on public transportation, B card will have to wait for a long time, unless B card takes a 50% discount on public transportation.
The A card of our company belongs to Suzhou Bank. After consultation, there is no charge for handling the card this year, but I have not told whether to charge management fees in the future. In case charges start next year, everyone in Suzhou will donate. This is a considerable number!