The maximum number of allowed lots is as follows:

  a) $5K   -----  1 lot
  b) $10K  -----  2 lots
  c) $25K  -----  5 lots
  d) $50K  -----  10 lots
  e) $100K -----  20 lots

The total lot size across all of your positions should not be greater than the maximum lot size permitted for that account size if you execute several trades on the same pair at the same time that run concurrently.

Our system will automatically detect and close any position that exceeds the max lot size limit if you do not follow the max lot size on a trade or position. You will also receive a warning email in addition to this. As this is merely a mild violation policy, you can carry on trading on your account. You might have to forfeit the gains before moving on to the next stage of the funding program.

You can only commit two mild breaches; the third is regarded as a Hard Breach.
Note that requirements for margin and leverage still stand. Since these are the maximum lots that can be traded, depending on the particular trade, you might not be able to trade up to the maximum due to the account's leverage.