P2419H, bracket for AC511 speaker bars?

Is it possible to get just the bracket. We've purchased more than a dozen workstations with dual P2419H monitors and AC511's that we CANNOT use because the P2419H does not have mounting holes. A bracket, or something else, is needed in order to use the AC511 soundbars that just we purchased along with the monitors we just purchased. If no standalone bracket SKU is available then essentially you are saying, too bad, now go buy the AE515M too, hahahaha. These were bought on a deal registration through sales rep. Shouldn't the Dell sales reps know these things don't work together?  wasted man hours.