The store refuses to give my tablet

<br> I bought a bed and a tablet in May this year. The bed was delivered but did not receive the tablet.<br> The sales lady by the name of Queen and her manager keeps telling me I will get it in 2 weeks time as they have ran out of stock.I always call them and they keep promising to call me back and they don't. I asked them to draft another <br> contract for the bed only and take out the tablet and they refused to do it.<br> I regret buying from Lewis and I will never buy anything there. Today I received a call from a rude lady (debt collector) accusing me that I did not pay my account whereas my account is up to date. I asked her for her e-mail address to send her proof of payment because I did it online on the 29/07 and she hang up the phone.<br> I want Lewis to come collect their bed I cant stand their lack of service delivery, they did not honour their contract nevertheless I still paid my account as per agreement, now their sending me their *********** staff to call me and give attitude ....no..no..that I cannot take. I do not want to receive a call from them asking me to come to the store and beg for the tablet. They must and collect their bed. I'm not setting my foot in that store again