OstiumTrading::topUpCollateral() is missing pairsStored.groupMaxCollateral(pairIndex) check
Description
When opening trades it is checked if the collateral is within limits for each pair in OstiumTradingCallbacks::withinExposureLimits().
The same should be done in OstiumTrading::topUpCollateral().
Recommendation
Add the check to OstiumTrading::topUpCollateral().
Status
Addressed.