But perhaps the most criticized practice by yellowTAB was its tendency to make claims that turned out to be either half truths or vague enough that they could not be confirmed. Not only did yellowTAB announce certain developments that never materialized (such as Java, and ODBC among others), but it would also support certain capabilities beyond what ZETA was actually capable of (e.g., compatibility with MS Office). According to sources close to yellowTAB, this is believed to have led to a high return rate from customers that bought ZETA from the German RTL TV shopping channel, and the reason for which RTL eventually stopped selling the product.