1. The headquarters or financial center of the company to which the gas station belongs is in Nantong: some gas stations may belong to companies with headquarters or financial centers in Nantong, and the address of Nantong indicated on the invoice is consistent with its headquarters or financial center.
2. There may be a cross-regional business model in gas stations: some gas stations may cover multiple regions in their business process, and their financial accounting and invoice printing may be completed by headquarters or other centers, so the address shown on the invoice may be the location of headquarters or financial center.
3. Incorrect filling of invoice information or system configuration problems: In some cases, due to incorrect filling or system configuration problems, the gas station may display wrong address information on the invoice, which may be an example and needs to be corrected by relevant personnel in time.
It should be noted that in practice, if you refuel in Rugao and the address marked on the invoice is Nantong, you may need to further verify the validity and legality of the invoice. In case of similar situation, you can consult the relevant gas station or relevant department to ensure the authenticity and validity of the invoice.