anchor.diff:  	[{userdata, [{doc, "Reservation for voice call"}]}].
   
   reserve_voice(_Config) ->
  -	DataAmount = 2,
  +	DataAmount = rand:uniform(10),
   	DataSize = rand:uniform(10000000),
   	ReserveOctets = 1000000 * rand:uniform(10),
   	DataPrice = #price{name = "Data", type = usage,
  
positive.code: 	{ok, _} = ocs:add_offer(BundleProduct),
  	ProdRef = add_product(BundleOfferId),
  	ServiceId = add_service(ProdRef),
  	StartingAmount = 2567,
  	B1 = bucket(cents, StartingAmount),
  	BId = add_bucket(ProdRef, B1),
  	ServiceType = 12,
  
negative.code: 			bundle = [#bundled_po{name = DataOfferId},
  					#bundled_po{name = VoiceOfferId}]},
  	{ok, _} = ocs:add_offer(BundleOffer),
  	StartingAmount = (ReserveTime div VoiceSize) * VoiceAmount * 2,
  	ProdRef = add_product(BundleOfferId),
  	ServiceId = add_service(ProdRef),
  	B1 = bucket(cents, StartingAmount),
  