We always try to tell people to sequester clones when they get them from another source to make sure they are free from pests or disease, to prevent this kind of thing. I am sorry that somehow we did not let you know this.
If you have not purchased the lady bugs, don't. They will not even begin to eradicate the mites. It is truly a waste of money.
Did you try SNS 217? If not try that. It is organic and gentler than the others I am mentioning. If you did and it did not eradicate the mites (doesn't always work for me), I would go with some Forbid, Avid or Floramite. These are STRONG, so make sure that you follow directions to a tee. With mites the statement "Whatever doesn't kill them makes them stronger" is absolutely true. Trying to eradicate them with ineffective measures makes them more resistant to treatment. It is good to change up treatments. I have SNS217, Forbid, and Floramite in my arsenal.
Good luck eradicating "The Borg".