You may be aware that Mastercard has received an additional range of 2-series account numbers (222100-272099) to add to the 5-series currently being used.
The 2-series Bank Identification numbers (BIN) will operate in the same way as the 5-series does today.
You can read more on their news at :
https://www.mastercard.us/en-us/issuers/get-support/2-series-bin-expansion.html
For the above new change by Mastercard, we can confirm below :
1.
For those using VPCart v8.00.10.3 and afterward, this already been fixed in our latest core file. So no need further update.
2. For those using VPCart lower than v8.00.10.3, or VP-ASP 7.00 you may need to update your core file for this.
a. Open your file shopvalidatecreditcards.asp using notepad or text editor.
b. Locate this code below (approx line 28) :
ccprefix = "51;52;53;54;55"
ccprefix = "51;52;53;54;55;22;23;24;25;26;27"