Contact them, and let them know. They may swap mags with you.
No, changing mags for a different chambering won't be a different Mag. .22-250 to .308 Win, and everything in between, is all the same bolt face, and magazine.
Right on advice. Do they put the part numbers on the mag? If so, here are the part numbers...
#S2401509 is for 204 and 223
#S5850372 is for 22-250, 243, 7mm-08, and 308
#S5850371 is for 270WSM and 300WSM
#S5850373 is for 25-06, 6.5-55, 270, 30-06, 7mm Rem Mag, 300 WinMag, 338WinMag