Wales are consulting the International Rugby Board about the performance of referee Romain Poite in Saturday’s 38-16 defeat to South Africa in Durban.
The Welsh management were not happy with the way the Frenchman refereed the scrum.
It is not the first time the Welsh have sought clarification over Poite’s interpretation of the scrum – they did the same after their Six Nations defeat to England at Twickenham earlier this year after prop Gethin Jenkins was continuously penalised and eventually sin-binned.
Assistant coach Robin McBryde said: "We are seeking a bit more clarification on the scrum from (IRB referees' boss) Joel Jutge, who I will meet again this week.
"I don't want to be too critical because there are a lot of things for referees to look at. It's the specifics of the technical aspects of the scrum.
"There are a couple of times when we've been penalised and we want to make sure we're seeing the same things as the referee.
"We met Romain before the game and still those decisions went against us. We just need to clarify things."
The Welsh acknowledge that they would have lost the game even if Poite was wrong and fly-half Dan Biggar says the squad is hurting.
"It is hugely disappointing to lose any game, but what made it worse was it felt like South Africa did not have to work particularly hard for any of their points," he said.
"They are an outstanding team, they were clinical and if you give these sides a sniff they will take it.
"But what can we do? Give up this week and take another hammering or do we roll our sleeves up, show a bit of mental toughness and togetherness and try and go out to put in a spirited performance and upset the odds.
"That is the view we are taking. That's the way to go rather than feeling sorry for ourselves and thinking it will be same again.
"We are hoping it won't be, we have dusted ourselves down, we have some very strong characters in this camp and we want to surprise the 'Boks on Saturday."
The nature of the humbling defeat means changes are likely for Saturday’s second Test in Nelspruit.
Lock Luke Charteris admits there will be plenty of nerves around the camp ahead of the team announcement for the second Test.
He said: "We are over here with a big squad, because of the midweek game, so the options are there for the coaches if they want to make changes.
"After what happened on Saturday, I guess there will be quite a few nervous boys come team selection day on Thursday."
Watch South Africa take on Wales in Nelspruit on Saturday live on Sky Sports 1 from 2pm.