public async Task AddAatfDeliveredAmount(string approvalNumber, string facilityName, WeeeCategory category, ObligationType obligationType, decimal tonnage)
{
var aatfDeliveryLocation = await schemeQuarterDataAccess.GetOrAddAatfDeliveryLocation(approvalNumber, facilityName);
weeeDeliveredAmounts.Add(new WeeeDeliveredAmount(obligationType, category, tonnage, aatfDeliveryLocation));
}
