That “customers are frustrated with unreliable service and slow broadband internet speeds” led wireless internet providers to being rated “among the five lowest industries” by the South African Customer Satisfaction Index (SAcsi). More than 1400 customers of Telkom‚ Vodacom‚ Cell C and MTN – surveyed between November 2015 and January 2016 - gave wireless internet providers an overall satisfaction score of 68.2 out of 100.“Scores lower than 70 out of 100 generally indicate poor customer satisfaction‚” said SAcsi founder Adrè Schreuder.Telkom and Vodacom scored above the industry average‚ with 69.7 and 69.4 ‚ respectively; Cell C scored on par with 66.8; and “MTN scored below par for the second year running at 66.3 out of 100”‚ statement said.“Even as internet usage grows‚ customers are frustrated with unreliable service and slow broadband internet speeds. They resent not being able to modify products once they’ve made their purchases‚” said Schreuder.Other SAcsi findings:In terms of value for money‚ Telkom scored highest‚ followed closely by Cell C‚ while “Vodacom’s perceived value score is on par with the industry average and MTN recorded the lowest value score this year”.Telkom and Vodacom lead the loyalty rankings‚ while MTN customers say they are less likely to purchase more products from MTN.Telkom’s customers are more likely to recommend Telkom to friends‚ family and colleagues‚ while Cell C’s customers are the least likely to.“While Vodacom fared well in …fair treatment‚ easily understandable information and suitable advice‚ MTN’s customers rated the company lowest on these‚” said Schreuder.“Vodacom customers claimed the highest perceived quality of wireless internet and Cell C customers perceived the quality they received to be the lowest‚ while MTN showed the greatest improvement in…its wireless internet service this year‚ but it remained low in comparison to the rest of the market.”"All providers experienced high levels of complaints‚ with more than a third of customers surveyed (36%) reporting that they had experienced a problem with their provider in the preceding six months"...