anchor.diff:  	ProdRef = add_product(OfferId),
   	ServiceId = list_to_binary(ocs:generate_identity()),
   	Password = ocs:generate_password(),
  -	Chars = [{"radiusReserveSessionTime", ReserveTime}],
  -	{ok, _Service1} = ocs:add_service(ServiceId, Password,  ProdRef, Chars),
  +	{ok, _Service1} = ocs:add_service(ServiceId, Password,  ProdRef, []),
   	StartingAmount = 1000,
   	B1 = bucket(cents, StartingAmount),
   	BId = add_bucket(ProdRef, B1),
  
positive.code: 	P1 = #price{type = tariff, units = PackageUnits, size = PackageSize,
  			amount = 0, char_value_use = CharValueUse},
  	OfferId = add_offer([P1], "4"),
  	Chars = [{"radiusReserveSessionTime", 60}],
  	ProdRef = add_product(OfferId, Chars),
  	Password = ocs:generate_password(),
  	ServiceId = list_to_binary(ocs:generate_identity()),
  	{ok, _Service1} = ocs:add_service(ServiceId, Password, ProdRef, Chars),
  	Timestamp = calendar:local_time(),
  	RemAmount = ocs_rest:millionths_in(1000),
  	B1 = bucket(cents, RemAmount),
  
negative.code: 	P1 = #price{type = tariff, units = PackageUnits, size = PackageSize, amount = 0,
  			char_value_use = CharValueUse},
  	OfferId = add_offer([P1], "5"),
  	ProdRef = add_product(OfferId, []),
  	Password = ocs:generate_password(),
  	ServiceId = DesPrefix ++ ocs:generate_identity(),
  	{ok, _Service1} = ocs:add_service(ServiceId, Password, ProdRef, []),
  	Timestamp = calendar:local_time(),
  	RemAmount = ocs_rest:millionths_in(1000),
  	B1 = bucket(cents, RemAmount),
  