Too long to repair

On Sunday 22nd March I took my tablet in to have the battery replaced at the Samsung Smart Care Centre. I was told it will take 2 days. Today is Thursday 26th March, 4 DAYS LATER and nobody has even assessed my unit, nobody has contacted me. <br> Now when I call in to find out what is going on, I am told that there is a backlog of at least 7 days!<br> why can Samsung not inform their clients? why is there no communication? WHY DOES IT TAKE SO LONG FOR THE REPAIRS?<br>