Card readers not working at my polling station

Of course the card readers failed woefully in my polling station.  Right from early in the day,  it was a complete confusion galore as many polling booth stations had their card readers mistakenly taken to other locations.  Right until now the one they claimed to be right for our polling station is not accepting any cards, rejecting all the cards of everyone in this polling station in Enugu state.  Very bad for our elections. How can anyone be sure of the next problem