请大家帮我看看这封书信有语法错误吗?
Iamterriblysorryfornothavingthetimetoansweryourphonetoday.ThisafternoonIwenttoYanjiaoinHebeitofetchsomeletterheadstotypemyrecommendationsfortheinstituteIsaidIwasworkingininmyresumeislocatedinthere.IamnotsurewhetheraphonecallthatImissedatnightwasfromyoubecausemyphonewaslowpoweratthattimebyreasonofitsoverusetoday.Sodoyoumindifyouleaveyourphonenumbertomeandtellmewhenyouareusuallyavalabletoanswermyphonecall?
IhaveclosereadyourlastletterandammotivatedbyMr.Malcolm'saffirmationtomyabilitites.Imustconfessthathe'sreallyprofessionalandwithaquitehighangleofviewinacademicfiled.AndyoursuggestionisveryhelpfulandIwillmakeasincereconsiderationofyourwords.Iwillrectifymydocumentsaccordingtoyoursuggestionassoonaspossibleandsenditbacktoyoutomorrow.
PleaseaccpetmysincerrethanksandbestregardstoyouandMr.Malcolm.